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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
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Conjugation, a key component of phase II biotransformation reactions, is a vital process in drug detoxification. It involves transferring endogenous substances like glucuronic acid, sulfate, and glycine to drugs or their metabolites formed in phase I reactions. These conjugation reactions, often catalyzed by specific enzymes, transform potentially harmful metabolites into inactive, water-soluble forms easily excreted in urine or bile. By enhancing polarity and eliminating pharmacological...
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Phase II biotransformations are detoxification mechanisms that conjugate xenobiotics with endogenous substances, neutralizing their toxicity.
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The biliary system of the liver, crucial for bile secretion and drug excretion, comprises intrahepatic bile ducts that merge to form the common hepatic duct. This duct, carrying hepatic bile, combines with the cystic duct, draining the gallbladder and forming the common bile duct, which empties into the duodenum. Bile, produced by hepatic cells lining the bile canaliculi, is composed primarily of water, bile salts, pigments, electrolytes, and lesser amounts of cholesterol and fatty acids. Bile...
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Sulfation and α-amino acid conjugation are two critical biotransformation reactions in drug metabolism. Sulfation, a phase II biotransformation reaction, involves adding a polar sulfate group to a drug, enhancing its water solubility and promoting excretion. This process can either co-occur with or occur independently of glucuronidation. Nonmicrosomal sulfotransferase enzymes catalyze the process. The reaction involves 3'-phosphoadenosine-5'-phosphosulfate or PAPS coenzyme...
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Phase II reactions are essential for the detoxification and elimination of drugs from the body. These reactions involve the conjugation of parent drugs or their phase I metabolites with endogenous molecules, resulting in more hydrophilic drug conjugates. The primary conjugation reactions in this phase are sulfation and glucuronidation. Both sulfation and glucuronidation typically produce biologically inactive metabolites. However, in some cases involving prodrugs, active metabolites may be...
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Bile acid conjugates enhance cancer drug efficacy by improving bioavailability and targeting cancer cells, reducing side effects. This review covers their design, synthesis, and anticancer potential.

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Area of Science:

  • Biochemistry and Medicinal Chemistry
  • Pharmacology
  • Supramolecular Chemistry

Background:

  • Bile acids possess unique amphiphilic chemistry, chirality, and rigidity, making them valuable in biomedical and pharmacological research.
  • The hydroxyl group on bile acids allows for structural modifications to enhance bioactivity and bioavailability.
  • Bile acid-bioactive molecule conjugates are explored to improve therapeutic efficacy against cancer cells.

Purpose of the Study:

  • To review the design and synthesis of bile acid conjugates.
  • To discuss the anticancer effectiveness of these conjugates.
  • To highlight recent advances in understanding bile acid conjugate applications.

Main Methods:

  • Review of literature on bile acid conjugate design and synthesis.
  • Analysis of studies evaluating the anticancer activity of bile acid conjugates.
  • Examination of methods to improve bioavailability and stability.

Main Results:

  • Bile acid conjugation enhances the therapeutic efficacy of cytotoxic drugs.
  • Conjugates show improved bioavailability and stability compared to parent drugs.
  • Targeted delivery to cancer cells leads to reduced systemic toxicity.

Conclusions:

  • Bile acid conjugates represent a promising strategy for cancer therapy.
  • Further research into their design and application is warranted.
  • These conjugates offer a means to overcome drug delivery and efficacy challenges.